/*
 * Copyright (c) 2009 Roman Savelyev
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include "conuiengine.h"
#include "attachedengine.h"
#include "detachedengine.h"
#include "conuisurfacelogger.h"

EXPORT_C CConUiEngine* CConUiEngine::NewL(const TSize& aSize)
    {
    FL(_L("CTerminalProxy::NewL"));
    FLTRACE(_L("making detached engine"));
    return new(ELeave) CDetachedEngine(aSize);
    }

EXPORT_C CConUiEngine* CConUiEngine::NewL(const TDesC8& aTerminalType)
    {
    FL(_L("CTerminalProxy::NewL"));
    FLTRACE(_L("making attached engine"));
    return CAttachedEngine::NewL(aTerminalType);
    }

EXPORT_C CConUiEngine::CConUiEngine() :
    iCursorVisible(EFalse)
    {}

EXPORT_C CConUiEngine::~CConUiEngine()
    {
    FL(_L("CConUiEngine::~CConUiEngine"));
    // array does not own addressed memory
    iObserverStack.Close();
    }

EXPORT_C MConUiEngineObserver* CConUiEngine::Observer()
    {
    MConUiEngineObserver* observer = NULL;
    if (0 < iObserverStack.Count())
        {
        observer = iObserverStack[iObserverStack.Count() - 1];
        }
    return observer;
    }

EXPORT_C void CConUiEngine::PushObserverL(MConUiEngineObserver& aObserver)
    {
    FL(_L("CConUiEngine::PushObserverL"));
    iObserverStack.AppendL(&aObserver);
    }

EXPORT_C void CConUiEngine::PopObserver(const MConUiEngineObserver* aCheckItem)
    {
    FL(_L("CConUiEngine::PopObserver"));
    FLTRACEVALUE(iObserverStack.Count());
    ASSERT(0 < iObserverStack.Count());
    if (0 < iObserverStack.Count())
        {
        TInt topIndex = iObserverStack.Count() - 1;
        ASSERT(iObserverStack[topIndex] == aCheckItem);
        iObserverStack.Remove(topIndex);
        }
    }

EXPORT_C TBool CConUiEngine::CursorVisible() const
    {
    return iCursorVisible;
    }

EXPORT_C void CConUiEngine::SetCursorVisible(TBool aVisible)
    {
    if (iCursorVisible != aVisible)
        {
        iCursorVisible = aVisible;
        DoSetCursorVisible(aVisible);
        }
    }
